Crank-shaft connection and means for lubricating same



Oct. 12 1926. 1,632,960l

B.F.AuGuswNE CRANK SHAFT CONNECTION AND MENS FOR LUBRICATINGVSAME voriginal Filed March a 191 s s sheets-sheet 1' FLW Oct. 'l2 1926. 1,602,960

B. F. AUGUSTINE CRANK SHAFT CONNECTION AND MEANS FOR LUBRICATING SAME Original Filed March' a, 191B s sheets-sneezel Fw' Il? L aa JW .M W v a J1. 3- an Oct. l2 1926. 1,602,960

` B. F. AUGUSTINE g GRANK SHAFT CONNECTION AND MEANS FOR LUABRICATING SAME Original Filed March 8, 191 8 5 Sheets-Sheet 5 R v l A Patented Oct. l2, 1926.

UNITED STATES PATENT OFFICE.

BENJAMIN FRANKLIN AUGUSTINE, OF BUFFALO, YORK, ASSIGNOR AT AUGS- 4'TINE A 'TOMATIC ROTARY ENGINE COMPANY, OF BUFFALO, NEW YORK, A COR- PORATION OF YQRK.` j

' @RANK-:SHAFT CONNECTION AND MEANSVFOR LUBRICATING `,Original application filed March 8, 1918, Serial No. 221,256. `Divided and this j 1922. Serial No. 572,126.

This invention relates to new and useful covered in my prior applicationy heretoimprovements 'in .gas engines, and more particularly to certain improvements` in twoc'ycle enginesof the rotating ,cylinder type.

The details of :construction which form the subject-matter .of this invention are ful ly shown and described. but not claimed,

ydrawings f in. my `Patent No'. l,442,596,.fi1ed March 8, 191.8,.-of which this present application is a division. j

One of the objects of the present inven-l tion 4resides in the novel construction of the Yconnection between the plurality of piston. rods and the central crank whereby the driving torque `is evenly distributed and eX- rcessive ,wear on the parts is eliminated. i Still'another feature of this invention resides in the improved manner of constructlates to the novel manner of lubricating these connections so that the various wearing surfaces are constantly provided with a sailicient supply of lubricant.

These a11d fother objects will in part be obvious and will partbe hereinafter more fully disclosed; 1 Y

vReferring now more particularly .to the kFigure l is a sectional view of the complete engine;

Fig. 2 is an end view of the crank connection showing the oiling features in ldotted lines, the end cups being nemoved;

-Fig. .3 is a perspective view of two of th crank elements showing how these parts are 4nested together, and

Fig.` 4 is a 4sectional view longitudinally of the .crankl connect-ion between 4the connecting lrods and 4the fixed crank.

Awith a crank 6 offset from the axis of the shaft. In the presentstruct-ure, each piston is `connected to the ycentral crank '6 by a connecting rod 26. Each of these connecting rods 26 is attached to a wrist pin 27 mounted in inwardly projecting Lbearings 28 carried by eachpiston and held in lplace by cap plates 9.9. The inner end of each connecting rod is attached to crank 6 by an improved connection comprising a plurality of cross bars 30 each .of which has formed integral therewith spaced rings 3l and 32. These rings are attached to their respective cross bars so that they maybe nested tof.gether as` clearly shown in Figures 2 to 4. Inside ofthe nested rings are arranged two floating sleeves 33 .and Blwhich are constructed and arranged to take a portion of the pull exerted by the connecting rodson .the crank 6. Each cross bar 30 at opposite sides of its connecting rod 26 is .provided .with agroovze 30?L in its outer face and compression rings 35 are slipped over the ends of the. cross bars after the parts are assembledl and snap into these Grooves, after which ,cups y36 are then slippe` over the ends of lthe' cross bars and over the `compression rings, Ywhich thus engage their respect-ive cups and Vform oil pockets for retaining the lubricating oil within they cups.` means of this construction, the pull on ,the eon.

necting,r rods 26 causes the crossrods or bars carried thereby to engage the cups thereby 1drawing the same against the :Opposed cross bars, thereby distributing the load and preventing undue-wear on all parts.

An extremely simple and efficient means for lubricating this ,connection between vthe Ycrank and-piston rods is obtained by extending llrbr-icating pipes through the hollapplicaten iiled July 1, i

eol

low crank shaft 5. One of these oil conduits such as GG is arranged to furnish oil to the crank shaft, by means of its continuation to the interior of the piston as clearly shown in Fig. l. In such an arrangement, the oil passes out through the groove an( openings 33@ in the floating sleeves 33 and tat and also through openings 30 in the cross bars 30 and rings 3l. and 32 thereby effectively lubricating all of these parts.

It is obvious from the foregoing that a connection such as described is of very simple construction, is exceedingly easy to assemble, and when assembled, most effectively distributes the stresses and torques due to the reaction of the plurality of piston rods on the crank shaft. It is also evident that by means of the simple lubricating system, the oil is continuously passed to all inner wearing surfaces of this connection so as to provide a constant and fresh supply of lubricating oil.

It is obvious that minor changes in the details of constructionand arrangement of the parts may be made without departing from the spirit of the invention as set forth in the appended claims. y

Having thus described the invention, what l claim as new and desire to secure by Letters-Patent, is-

l. gas engine including in combination a rotatable casing, a-plurality of radially disposed cylinders connected thereto, a fixed shaft having a crank located in said casing, said casing rotating about said fixed shaft as an axis, a piston in each cylinder, a. connecting rod for joining each piston to the crank, each connecting rod having a cross bar and synnnetrically disposed rings one on each side of the connecting rod,v the rings on the several cross bars being disposed so that they may be nested, floating sleeves located one within the other and between the nested rings and the crank, said -floating' sleeves, rings and crossbars having openings and grooves for lubricating the parts, said shaft having a hollow chamber and an oil pipe extending through said hollow chamber to the crank, whereby lubricating oil may be delivered to said parts, `end cups inelosing the ends of the cross bars on each side of the connecting rods, each cross bar at cach side of the connecting rod having a groove formed therein and a compression ring adapted to engage said groove and the inner face of the respective cups for holding the lubricating oil within the cups.

2. A gas engine including in combination,

a rotating casing', a plurality of radially disposed cylinders connected thereto, a fixed shaft having a crank located in said casing, said casing rotating about said fixed shaft as an axis, a piston in each cylinder, a connecting rod forjoining eachpiston to the crank, each connecting rod having a cross bar and symmetrically disposed rings one on each side of the connecting rod, the rings on the lseveral cross bars being disposed so that they may be nested, floati ng devices located one within the other and between the nested rings and the crank, said floating devices, rings and cross bars having openings and grooves for lubricating the parts, said shaft having a hollow chamber and an oil pipe extending through said hollow chamber to the crank, whereby lubricating oil may be delivered to said parts, end cups inclosing the ends of the cross bars on each side of the connecting rods, each cross bar at each side of the connecting rod having a groove formed therein, and a compression ring adapted to engage said groove and the inner face of the respective cups for holding the lubricating oil Within the cups.

Agas engine including in combination a rotatable casing, a plurality of radially disposed cylinders connected thereto, a fixed shaft having a crank located in said casing, said casing rotating 4about said fixed shaft an axis, a piston in each cylinder, a connecting rod for joining each piston to the crank, each connecting rod having a cross bar and symmetrically disposed rings one on each side of the connecting rod, the rings on the several cross bars being disposed so that they may be nested, floating sleeves located one within the other and between the nested rings and the crank, said floating sleeves, rings and cross bars having openings and grooves for lubricating the parts, said shaft having a hollow chamber and an oil pipe extending through said hollow chamber to the crank, whereby lubricating oil may be delivered to said'parts, end cups inclosing the ends of the cross bars on each side of the connecting rods, each con necting rod having a passage extending lengthwise thereof for conveying the oil outwardly to the vconnection between the connecting rod and the piston. Y

4. A gas engine including in combination, a rotatable casing, a plurality of radially disposed cylinders connected thereto, a fixed shaft having a crank located in said casing, said casing rotating about said fixed shaft as an axis, a piston in each cylinder, a connecting rod for joining each piston to the crank, each connecting rod having a cross bar and symmetrically disposed rings one on each side of the connecting rod, the rings on the several cross bars being disposed so that they may be nested, floating sleeves located one within the other and between the nested rings and the crank, said floating sleeves, rings and cross bars having openings and grooves for lubricating the part-s, said shaft having arhollovv chamber and an oil pipe extending through saidV hollow chamber to the crank, whereby lu` bricating oil maybe delivered to said parts,

5 ontwmfdly to the connection between the In testimony Whell end oups :inolosng 4the ends of the cross bars ing a groove formed therein und e compreson each slde of the conneotlng rods, each s1on ung adapted to engage sald groove and connecting rod having a passage extending the inner face 0f the respective Cups for 10 lengthwise thereof for conveying th@ Oil holding the lubricating oil within the Cups.

s eof, I affix my signaconneetlng rod and the p1ston, each cross ture,

bar at each side of the connecting rod hav- BENJAMIN FRANKLIN AUGUSTINE. 

